Which letter is not used as a symbol of chemical element?

N
O
P
R
N is the chemical symbol of ni­tro­gen, O - oxygen, P - phos­pho­rus.

Answers distribution

N
O
P
R
answers
flagSwitzerland
0%
0%
0%
100%
13
flagUnknown
2%
3%
5%
88%
587
flagPoland
4%
4%
5%
84%
6773
flagNorway
3%
7%
3%
84%
26
flagMalaysia
5%
5%
0%
82%
17
flagIndia
1%
9%
6%
81%
197
flagCanada
3%
0%
17%
78%
28
flagthe United States
5%
8%
7%
77%
336
flagAustralia
7%
3%
11%
77%
27
flagSweden
18%
0%
4%
77%
22
flagPakistan
3%
6%
15%
75%
33
flagthe United Kingdom
5%
9%
8%
74%
232
flagNigeria
0%
3%
11%
73%
26
flagthe Netherlands
7%
0%
19%
73%
26
flagSingapore
9%
9%
9%
71%
21
flagthe Philippines
10%
6%
6%
70%
30
flagthe United Arab Emirates
13%
13%
6%
66%
15
flagGermany
9%
15%
15%
59%
52
flagRepublic of Ireland
26%
21%
0%
52%
19
flagFinland
35%
5%
10%
50%
20

Gender

men85%
women83%
N
3%
4%
O
4%
6%
P
6%
5%
R
85%
83%

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Which letter is not used as a symbol of chemical element?
966
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Illustration: Bri Weldon
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